Today there are many operating systems available. Every vendor or community round it tries to make it as good as possible. Having different goals, different legacy and different cultures, they succeed in it more or less. We (end users) end up with big selection of operating systems, but for us the operating systems are usually compromise of the features that we would like to have. So is there an operating system that would fit all the needs of the end user? Is is the BeOS clone Haiku?

You've totally missed the point of the article. Have you even read it? It is not about current version of Haiku, it is what Haiku might become in the future.

No you miss the point. Haiku as an operating system in its own right is years away. None of us have any idea what Haiku will look like once it gets beyond the shadow of the BeOS it has been living under its whole life. Speculation is pointless, until at least two or three releases after release one.

bcavally posted...

At the end, I even address readers to state their opinion which operating system by their opinion has the potential to become "the perfect desktop operating system" in the future.

Oh that's easy! All of them. The perfect desktop operating system means different things to different people.